Weed spraying and coincident asthma.
D000368:Aged; D001249:Asthma / Q000139:chemically induced* / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000627:therapeutic use; D005100:Expectorants / Q000627:therapeutic use; D006540:Herbicides / Q000506:poisoning*; D006801:Humans; D008297:Male; D011175:Positive-Pressure Respiration
D001993:Bronchodilator Agents; D005100:Expectorants; D006540:Herbicides